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Proof of Concept

Proof of Concept Add us as a preferred source on Google

Substack @davidhoang Design
🔄 Data last refreshed 23 hours ago
Subscribers
13K
Account age
6 yrs
🎁 Free analysisfor Proof of Concept

💡 Facts

🗓️Joined Substack in 2019 — 6 years ago.
📤Posts about 1× per week.
💬0.15% engagement rate.
🏅Earned the 10K Subscribers for passing 10K subscribers.

👥 Audience demographics

Estimated

Modeled from this creator's niche, platform & region — a niche benchmark, not this creator's real audience data.

Gender split
Male 48% Female 52%
Age · peak 18-24
13-1712%
18-2434%
25-3428%
35-4417%
45+9%
Top geographies
  • United States34%
  • India11%
  • United Kingdom8%
  • Brazil6%
  • Indonesia5%
Audience language
  • English88%
  • Other12%
Likely interests
EntertainmentLifestyleTrending

💬 Newsletter engagement

Measured

Real reader activity from the last 12 posts — reactions, comments and restacks are public on every Substack post.

19
❤ avg reactions / post
2
💬 avg comments / post
2
🔁 avg restacks / post
0.15%
Solidreaction rate
Free issues (reach the whole list) vs paywalled
83% free

Almost every issue is free — a sponsor reaches the entire subscriber base.

About

Proof of Concept is a digital publication about creativity and experimentation for designers, builders, and entrepreneurs.

Frequently asked questions

How much does Proof of Concept charge for a sponsorship?
Proof of Concept hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
How do I contact Proof of Concept for a brand deal or collaboration?
Send a paid deal or collab request right here on SocialDB — we notify Proof of Concept, and once they accept, your payment is held safely in escrow and released when the work is approved. You don't need to track down an email.
How many subscribers does Proof of Concept have?
Proof of Concept has 13,000 subscribers on Substack.

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